Casement window operating means



L L E B P M A C E. H.

CASEMEN WINDOW OPERATING MEANS Filed April 50, 1956 INVENTOR #4e/@y i64M/ 255g Patented Mar. 2, 1937 UNITED STATES PATET OFFICE CASEMENTWINDOW OPERATING MEANS Application April 30,

13 Claims.

The general object of the present invention is to provide improved meansfor adjusting a casement window into, and maintaining it in difierentpositions.

5 A more specific object of the present invention is to provide aCasement window arrangement in which the window sash is biased formovement from its fully closed position into its wide open position, andmay be adjusted into, and

l held in, dierent open positions, and may be locked in its closedposition, by manual adjustments given the inner end portion of aflexible operating element connected at one end to the sash andextending from the latter to the inner l side of the casing, andcooperating with means carried by the casing, and including partsthrough which the said adjustments of said element lock the sash to, orunlock it from the casing, when the sash is in its closed position, and,

when the sash is in an open position, cause saidelement to be eithergripped at one or another point along its length or released, andthereby hold the sash in one or another open position, or permit openingand closing movements of the sash.

In a preferred embodiment of the invention, the sash is given its biasfor opening movement by spring hinge connections between the sash andthe window casing, and the flexible operating connection through thevnndow sash is a light pull chain, and the cooperating means carried bythe casing includes a member which is pivoted to the casing and isformed with a guide passage for the exible element,

and is adapted to be given pivotal movements by lateral adjustments ofthe portion of the element at the inner end of said guide passage. Thesaid pivoted member is provided with a locking hook moved by the pivotalmovements of 4o said member into and out of locking engagement with thesash when the latter is in its closed position. In the specic form ofthe invention illustrated and described, in detail herein, when the sashis out of its fully closed position, pivotal movements of the saidpivoted member move said element into and out of engagement with thestationary walls of a slot which is adapted to receive a link of thechain but is too narrow to permit longitudinal movement of the chainthrough the slot.

' The various features of novelty which characterize my invention arepointed out with particularity in the claims annexed to and forming apart of this specification. For a better under- I standing of theinvention, however, its advan- 1936, serial No. 77,114

tages and specic objects attained with its use, reference should be hadto the accompanying drawing and descriptive matter in which I haveillustrated and described preferred embodiments of the invention.

Of the drawing:

Fig. 1 is an elevation of a easement window construction as seen fromits inner side;

Fig. 2 is a horizontal section on the broken line 2-2 of Fig. l;

Fig. 3 is a partial section on the line 3-3 of Fig. 1;

Fig. 4 is a perspective view of a chain guiding and holding and windowlocking element of the construction shown in Figs. 1, 2 and 3;

Fig. 5 is a fragmentary elevation of a portion of the. window casing andsash construction shown in Fig. 1, and taken at right angles to thatiigure;

Fig. 6 is a partial section on the line 6--6 of Fig. 3; and

Fig. 7 is a side elevation of a portion of a modied form of the elementshown in Fig. 4.

The window construction shown in the drawing comprises a metallic windowcasing element I adapted for inclusion in a building wall, and in theform of a rectangular frame surrounding a rectangular window openingadapted to be closed by a lmetallic window sash member 2, which is hingeconnected to the casing frame I at one side of the latter. As shown inFig. 2, the casing frame is of Z bar cross section, comprising inner andouter parallel flange or rib portions 3 and 4 connected by a transverseweb portion 5. `The sash 2 comprises a marginal frame portion of similarcross section, and in the closed position of the sash, its inner andouter frame flanges 6 and 'I abut against the casing flanges 3 and 4respectively, with the transverse sash web 8 alongside and spaced somedistance away from the casing web portion 4. As shown, the sashcomprises central vertical and horizontal bar portions 9` and lil,respectively, which in conjunction with the sash frame, provides seatsfor four glass panes I I. The latter may be anchored against their seatsin any usual or suitable manner which need. not be illustrated ordescribed herein, as the invention is not concerned with the mounting ofthe window panes, or with the shape or number of the latter.

The window sash 2 is hinged at one side to the corresponding side of thewindow casing by upper and lower hinge connections, each shown ascomprising a bracket I2 welded or otherwise attached to, and projectingoutwardly from, the outer flange 4 of the casing, a generally similarbracket part I3 welded or otherwise attached to the outer flange 1 ofthe window casing, and a bolt or analogous connection I4 between the twobrackets and serving as a hinge pintle. Each hinge connection includes aspring I5 shown as comprising a body portion of spring wire coiled aboutthe hinge pintle, and tangential end extensions I6 and II. The extensionI9 passes through an opening formed for the purpose in a lug orprojection I8 from the adjacent side of the corresponding bracket I2.The other spring end extension II lies in the corner-space at theadjacent side of the bracket I3 and in front of a vertically extendingflange portion I9 of the bracket part I3. The spring I5 is under tensiontending to spread its end portions I6 and I1 apart, and thereby subjectsthe sash to a constantly acting spring opening force.

The exible window operating element 20 used in Eaccordance .with thepresent invention includes suitably short sections which can movelaterally into the narrow portion of a keyhole slot alterhating withsections which are not longitudinally movable through said slot portionbut which as well as the first mentioned sections are longitudinally,movable through the large diameter portion of the slot.v Preferably,the element 2 0 is a. chain, andordinarily and as shown, is formed withsheet metal links. As shown, the chain 20 is connected to the sash atthe free edge of the latter and about midway between the top and bottomof the sash, by means of Va hook or eye part 2|, having a threaded stempassing through the sash-flange 6, and held in -place by a nut 2lbearing against the outer side of the flange.

As shown, the chain y29 extends through, and is longitudinally movablein the upper portion .of a vertically elongated opening 22, formed inthe casing iiange 3, the attachment part 2| being in register with theupper portion of the opening 22 when thesash is in itsclosed position.The chain 20 also extends through an opening formed in a metallic part25 secured to the window casing flange `3, .at the front or room side.of the latter, of keyhole form, the last mentioned opening comprising arounded upper portion 23 large enough `f or the freelongitudinalmovement of the chain 2,0', and an elongated lower portion24, which is wide enough to receive the shank or body por` tions of thechain links but is too narrow for the longitudinal movement of theenlarged ends of thechain links, as is plainly shown in Fig. 6. Asshown, the part 25 comprises a bar-like body portion Vformed adjacentits ends with holes 2B for securing bolts passing through ,those holesand ythreaded intothe casing flange 3. At its front side), the member 25is formed with lugs or ears 21, serving as hinge brackets or ears,apertured to receivel the ends of a pivot pin 28 on which is journaled alever' member 29. The latter com- `'prises a flat blade portion orlocking part 30 through which the pivot pin 28 extends and which isreceived between the ears 21, and extends through the keyhole openingportion 24, and opening 22. As shown, a portion of the member 29, in'front of .the p art 25, is thicker than the blade portion 30 andcomprises curved shoulders 3I in abutting relation with the roundededges of the hinge ears 2l, and also comprises a tubular portion J32,extending transversely to the general direction oi the blade portion 39.The bore or passage 33 through the lever portion 32 is of a diameter .toYpermit free longitudinal movement therethrough or the chain 20.

At its rear end, the blade portion 3U of the lever element, is providedwith a lateral projection 34. The latter, in the locked condition of thewindow engages the rear side of a locking lug or projection 35, which isrigidly secured to the sash, and, as shown, is a projection from abar-like part 31 screw connected to the sash web portion 8. In effectthe blade 39 and its projection 34 form a sash locking hook portion ofthe member 29. The engaging surfaces of the cooperating locking parts of34 and 35 are rounded and shaped to conjointly provide a camming, orwedging, action by which the sash ilanges 6 and I are pressed snuglyagainst the casing iianges 3 and 4, respectively, when the sash fislocked in its closed position. In that condition, the shank of one ofthe chain links is received in the portion 24 of the keyhole opening.

To move the sash out of its fully closed and locked position, the levermember 29 is turned in the direction to move its portion 32 out of thedepending position of the latter, shown in Fig. 4

the portion of .the chain 2D previously received in the narrow portion24 of the keyhole opening through the part 25, into .the enlargedrounded upper portion 23 of that slot. With the lever 29 in positionshown in dotted lines in Fig. 3, the sash is free to move in the openingdirection under the action of its spring hinges, unless and except assuch movement is prevented or reversed by force transmitted to the sashthrough the chain 20. Y

The sash may be secured in any open position into which it is moved as aresult of the opposing actions of the spring hinges and the pull on thechain 2U, by turning the lever element 2,9 from its dotted line positioninto its full line position shown in Fig. 3. When the lever element isso turned into its full line position, the chain is moved laterally ordownward out of the larger ,upper portion `2,3 into the narrowed lowerportion 24 of the keyhole opening in the member 25. The window sash maythus be secured inany .open position in which one or another of thechain links has its shank or body portion received in the portion 24 ofthe key-hole slot.

The projection 36 from the part 25 isadapted for use in latching inkplace a window screen, not shown, and forms no part of the inventionclaimed herein. As shown, the lever member 29 is provided with aprojection 38 engaging the member 35 and preventing over-movement of thelever member when the latter is turned from its dotted line vpositioninto its full line position of Fig. 3. In the normal position of thelever 29 shown in Fig. 4, the projection 38 closes the lower end of theslot portion 24 in the member 25, as is especially desirable because ofthe lateral en-r largement 24 of said slot portion at one side providedto accommodate the movement of the lever locking part 35 between itsfull and dotted line positions shown in Fig. 3, and in the assembly ofthe parts 25 and 29. As shown, also, the member 25 is formed with arecess 39 at its side adjacent the flange 6, which slidingly receives abar-like part 49. The latter is gravitationally held in engagement withthe chain 29 and closes the upper portion of the slot 22 when the levermember 29 is in its position shown in full lines in Fig. 3.

As Ywill be apparent to those skilled in the art, the sash locking andadjusting means shown are compact, simple in construction, positive inaction, and easily operated. All necessary operative actions may beeffected by forces applied by the hand of the operator to the portion ofthe chain projecting into the room through the passage 33 in the levermember 2S, since the lever member 29 may be readily turned between itsfull line and dotted line positions shown in Fig. 3, by force applied tothe free end of the chain in the direction to bodily rotate the portionof the chain within the passage 33 about the axis of the pivot pin 28.By such lateral movements of the chain the latter is caused to engageand disengage the means provided to engage and hold the chain againstlongitudinal movement when the window is to be held in its diiierentopen positions, said means, in the form shown, consisting of theportions of the part 25 which form the side walls of the portion 24 ofthe opening through the part 25.

Those skilled in the art will appreciate the advantages in constructionsimplicity, ease of operation, obtained by the single simple pivotedmember, such as the lever 29, to positively lock the sash in its closedposition, and to guide the chain element 20 in its longitudinal andlateral movements, and which may be given all necessary movements byforces applied to it through the operating chain element.

In Fig. 7, I have illustrated a modification of the construction shownin Fig. 4. The modiication shown in Fig. 7 includes parts 23a, 24a, 25a,26a, 27e, 28e, 29a, 39a, 3N, 32a, 33a and 40e, correspondingrespectively to the parts 23 to 33, and 40, of the construction. Thelever 29a differs, mainly from the lever 2Q, only in the shape oi itsshoulders Sie, and in the form of its locking part 34a; the latter,instead of being a lateral projection from the blade portion 3!)a of thelever, is a hook end extension of the blade portion lying between theplanes of the sides of said portion. The sash carried locking projection35a is elongated for engagement, as shown in Fig. 7, by the hookextension 3de. With the locking part arrangement shown in Fig. '.7, theslot portion 2s in the member 25a need be no wider than is required bythe thickness of the blade portion 30e, and is lled by the latter in theposition of the parts shown in Fig. 7 so that the covering function ofthe part 38 shown in Fig. 4 is not required, and the lever 2e includesno part like the part 38. Excess movement in the locking direction ofthe lever is prevented in the construction shown in Fig. 7, by thespecial shape given to the lever shoulders Sie, and the edges of theears 2a engaged by those shoulders, when the parts are in the positionsshown in Fig. 7. The lower portions of the shoulders 3|a are flat, asare corresponding portions 2lb of the edges of the ears 212L engaged bythe at portions of the shoulders 3 la.

As shown, the outer face of the part 25a immediately below the roundedportion 23a of its keyhole slot, is recessed or indented at 27C toreceive the rounded end of the chain link engaged by the edges of theslot portion 2lia when the sash is locked in an open or partly o-penposition. The notches 21C facilitate the locking of the chain elementagainst longitudinal movement and may be provided in the construction ofFig. 4, as in that of Fig. 7.

The construction of Fig. 7 has certain practical advantages over thatshown in Fig. e, particuu larly in that the lever 2TH is easier to makethan the lever 21, though each form of lever may be cast and requireslittle machining. It is advantageous also that the lower end of the slotportion 2lia need not be laterally enlarged, as the slot portion 24 ofFig. 4 is enlarged for the passage of the lateral locking projection 34.

While in accordance with the provision of the statutes, I haveillustrated and described the best form of embodiment of my inventionnow known to me, it will be apparent to those skilled in the art thatchanges may be made in the form of the apparatus disclosed withoutdeparting from the spirit of my invention as set forth in the appendedclaims and that in some cases certain features of my invention may beused to advantage without a corresponding use of other features.

Having now described :my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a casement window, a window casing, a window sash hinged to saidcasing. to turn between open and closed positions, means tending to turnsaid sash away from, and opposing its return to its closed position, aflexible window operating element connected at one end to said sash andextending therefrom to the inner side of the window, sash locking meansmounted on said casing and rendered operative and inoperative bymovements of a portion of said element at the inner side of the windowin directions transverse to the length of said portion and adapted, whenrendered operative, to pro-vide a locking connection between said casingand sash which is independent of said element, and means mounted on saidcasing for holding said element against longitudinal movement andadapted to be rendered operative and inoperative by said transversemovements of said element portion.

2. In a casement window, a window casing, a window sash hinged to saidcasing to turn between open and closed positions, means tending to turnsaid sash away from, and opposing its return to its closed position, aiiexible window operating element connected at one end to said sash andextending therefrom to the inner side of the window, a sash lockingmember pivotally mounted on said casing and comprising a guide passagethrough which said element extends and adapted to l,be moved betweensash locking and unlocking positions by movements of the portion ofsai-d element extending away from said passage at the inner side of saidwindow in directions transverse to the length of said portion, and meansactuated by said transverse movements of said portion to hold saidelement against. or release it to permit longitudinal movement of theelement.

3. In a casement window, a window casing, a window sash hinged to saidcasing to turn between open and closed positions, means tending to turnsaid sash away from, and opposing its return to its closed position, aexible window operating element connected at one end to said sash andextending therefrom to the inner side of the window, a sash lockingmember pivotally mounted on said casing and comprising a portionincluding a guide passage through which said element extends and adaptedto be moved between sash locking and unlocking positions by movements ofthe portion of said element extending away from said passage at theinner side of said window in directions transverse to the length of saidportion, and casing carried means between said member and said sashportion adapted when in operative engagement with said element to holdthe latter against longitudinal movement, and said element being adaptedto be brought into and out of operative engagement with said means bythe said transverse movements of said element portion.

4. In a casement window, a window casing, a window sash carrying alocking part and hinged to said casing to swing relatively theretobetween its open and closed positions, means tending to move the windowsash away from and opposing its return to its closed position, a exiblewindow operating element connected at one end to said sash, a memberpivotally mounted on the casing and formed with a guide passage for saidelement and with a locking part and adapted to be given said pivotalmovements by lateral movements of the portion of said element extendingaway from the end of said passage remote from said sash, and meansadapted to be rendered operative and inoperative to hold said elementagainst longitudinal movement by the said lateral movements of saidelement portion.

5. In a casement window, a window casing, a window sash carrying alocking part and hinged to said casing to swing relatively theretobetween its open and closed position, means tending to move the windowsash away from and opposing its return to its closed position, aflexible window operating element connected at one end to said sash,element holding means carried by said casing, and a member pivotallymounted on the casing and formed with a guide passage for said elementand with a locking part and adapted by its pivotal movements to movesaid element into and out of engagement with said holding means and,when said sash is in its closed position, to move its locking part intoand out of operative engagement with the rst mentioned locking part.

6. In a casement window, a window casing, a window sash carrying alocking part and hinged to said casing to swing relatively theretobetween its open and closed positions, means tending to move the windowsash away from and opposing its return to its closed position, aflexible windowV operating element connected at one end to said sash,element holding means carried by said casing, and a member pivotallymounted on the casing and formed with a guide passage for said elementand with a locking part and adapted by its pivotal movements to movesaid element into and out of engagement with said holding means and,when said sash is in its closed position, to move its locking part intoand out of operative engagement with the first mentioned locking part,and adapted to be given said pivotal movements by lateral movements ofthe portion of said element extending away from the end of said passageremote from said sash.

7. In a casement window, a window casing, a sash carrying a locking partand hinged to said casing to swing relative thereto between open andclosed positions, means tending to swing the sash away from, andopposing its return to its closed position, a flexible elementconnecting at one end to said sash and extending therefrom to the innerside of the window, and element guiding means, a movable locking part,and element holding means carried by said casing, said guiding meanspermitting free longitudinal movement of said element but restrictingtransverse movement of the portion of said element immediately adjacentsaid casing to a range between two predetermined positions of saidportion and said movable locking part being moved into and out ofoperating engagement with the rst mentioned locking part, when said sashis in its closed position, by movement of said element portion betweensaid two positions and said element holding means being renderedoperative or inoperative to hold said element against longitudinalmovement, when said sash is out of said closed position, by movements ofsaid element portion between said two positions.

8. In a casement window, a window casing structure provided with anopening comprising portions of diiierent widths, a window sash, springhinges connecting said sash to said casing structure and tending to movesaid sash to an open position, a flexible element connected at one endto said sash at a point thereof which is adjacent said opening when thesash is in its closed position, and extending through said opening andlongitudinally movable through a wider portion of said opening andlaterally movable into and out of a narrower portion of said opening andheld against longitudinal movement when in the last mentioned portion byengagement with the walls thereof, and a lever mounted on said casingstructure for angular movement into and out of locking engagement withthe sash, when the latter is in its closed position, and by saidmovements moving said element between said narrower and wider portionsof said opening.

9. In a casement window, a window casing formed with a keyhole opening,a member rigidly attached thereto and formed with an opening in registerwith the rst mentioned opening, a window sash, a spring hinge connectionbetween said sash and casing at a side of the latter remote from saidopening and tending to move said sash to an open position, a flexibleelement connected at one end to said sash at a point thereof adjacentsaid openings when the sash is in its closed position and extendingthrough said openings and longitudinally movable through'a wider portionof the first mentioned opening and laterally movable between saidportion and a narrower portion of the first mentioned opening and heldagainst longitudinal movement when in said narrower opening portion bythe walls thereof, and a lever pivotally mounted on said member formovement into and out of locking engagement with said sash and holdingsaid element in said narrower or wider opening portions accordingly assaid lever is in one angular position or another.

10. In a casement window, a window casing formed with an opening, aWindow sash hinged to said casing at a side thereof remote from saidopening to turn between open and closed position, means tending to turnsaid sash away from and opposing its return to its closed position, aflexible window operating element connected at one end to said sash andextending therefrom to the inner side of said window through saidopening, a part detachably secured to said casing, a lever memberpivotally mounted on said part and comprising a sash locking hookportion extending through said opening and provided with an elementguideway at the inner side of the window which extends transversely tothe axis of the pivotal mounting of said lever and being adapted to beturned into and out of locking engagement with the sash, when the latteris in its closed position, by lateral movements given the portion ofsaid element extending away from said guideway at the inner side of thewindow, and means adapted to be rendered operative or inoperative by thesaid lateral movements for holding said element against longitudinalmovements.

11. In a casement window, a window casing formed with an opening, awindow sash hinged to said casing at a side thereof remote from saidopening to turn between open and closed position, means tending to turnsaid sash away from and opposing its return to its closed position, aflexible window operating element connected at one end to said sash andextending therefrom to the inner side of said window through saidopening, a part detachably secured to said casing and formed with akeyhole slot opening comprising an elongated lower portion and anenlarged upper portion, a lever member pivotally mounted on said partand comprising a blade like portion terminating at its end in a sashlocking hook, said blade-like portion extending through said lowerportion of said keyhole slot opening and through said casing opening,said lever member being provided with an element guideway at the innerside of the window, which extends transversely to the axis of thepivotal mounting of said lever, and said lever member being adapted tobe turned into and out of the position in which said hook is in lockingengagement with the sash, when the latter is in its closed position, bylateral movements given the portion of said element extending away fromsaid guideway at the inner side of the window, and means adapted to berendered operative or inoperative by the said lateral movements forholding said element against longitudinal movements.

12. In a easement window, a window casing formed with an opening, awindow sash hinged to said casing at a side thereof remote from saidopening to turn between open and closed position, means tending to turnsaid sash away from and opposing its return to its closed position, aiiexible window operating element connected at one end to said sash andextending therefrom to the inner side of said window through saidopening, a part detachably secured to said casing, and formed with aslot in register with said opening and formed at its inner side withears at opposite sides of said slot, a lever member extending betweenand pivotally mounted in said ears and comprising a sash locking hookportion extending through said opening, and provided with an elementguideway at the inner side of the window which extends transversely tothe axis of the pivotal mounting of said lever and being adapted to beturned into and out of locking engagement with the sash when the latteris in its closed position by lateral movements given the portion of saidelement extending away from said lguideway at the inner side of thewindow, said ears being edge surfaces and said lever member havingshoulders adapted to engage said surfaces and thereby limit the pivotalmovement of said member in the sash locking direction, and means adaptedto be rendered operative or inoperative by the said lateral movementsfor holding said element against longitudinal movements.

13. in a easement window, a window casing formed with an opening, awindow sash hin-ged to said casing at a side thereof remote from saidopening to turn between open and closed position, means tending to turnsaid sash away from and opposing its return to its closed position, awindow operating chain connected at one end to said sash and extendingtherefrom to the inner side of said window through said opening, a partdetachably secured to said casing and formed with a keyhole slot inregister with said sash opening through which said chain extends, and alever member pivotally mounted on said part and comprising a sashlocking hook portion extending through the lower portion of said slotthrough said opening and provided with a guideway for said chain at theinner side of the window which extends transversely to the axis of thepivotal mounting of said lever, said member being adapted to be turnedinto and out of locking engagement with the sash, when the latter is inits closed position, by lateral movements given the portion of saidchain extending away from said guideway at the inner side of the window,and being adapted by said movements to move a portion of said chain,between said guideway and sash, between positions respectively in theenlarged and narrow portions of said slot, the narrower portion of saidslot being wide enough to receive the body portions of the chain linksbut too narrow for the longitudinal movement therethrough of theconnecting portions of adjacent links, said part being formed at itsinner side with a recess adapted to form a seat for the end of the chainlink at the inner side of and connected to a link having its bodyportion received in the narrower portion of said slot.

HARRY E. CAMPBELL.

